Halicyclops is a genus of copepods belonging to the family Cyclopidae. There are currently 94 described species found in brackish habitats throughout the world:
- Halicyclops aberrans <small>C. E. F. Rocha, 1983</small>
- Halicyclops aequoreus <small>(Fischer, 1860)</small>
- Halicyclops ambiguus <small>Kiefer, 1967</small>
- Halicyclops antiguaensis <small>Herbst, 1983</small>
- Halicyclops aquaesurgentis <small>Bozic, 1964</small>
- Halicyclops ariakensis <small>Ueda & Nagai, 2009</small>
- Halicyclops blachei <small>Lindberg, 1952</small>
- Halicyclops bowmani <small>C. E. F. Rocha & Iliffe, 1993</small>
- Halicyclops brevispinosus <small>Herbst, 1952</small>
- Halicyclops calm <small>Karanovic, 2006</small>
- Halicyclops caneki <small>Fiers, 1995</small>
- Halicyclops canuensis <small>(Bourne, 1890)</small>
- Halicyclops canui <small>Lindberg, 1941</small>
- Halicyclops caridophilus <small>Humes, 1947</small>
- Halicyclops cenoticola <small>C. E. F. Rocha, Iliffe, Reid & Suárez-Morales, 1998</small>
- Halicyclops clarkei <small>Herbst, 1982</small>
- Halicyclops continentalis <small>Ueda & Nagai, 2009</small>
- Halicyclops coulli <small>Herbst, 1977</small>
- Halicyclops crassicornis <small>Herbst, 1955</small>
- Halicyclops cryptus <small>Monchenko, 1979</small>
- Halicyclops dalmatinus <small>Petkovski, 1955</small>
- Halicyclops dedeckeri <small>Brownell, 1983</small>
- Halicyclops denticulatus <small>Kiefer, 1960</small>
- Halicyclops dussarti <small>C. E. F. Rocha, 1995</small>
- Halicyclops eberhardi <small>De Laurentiis, Pesce & Humphreys, 2001</small>
- Halicyclops electus <small>Lindberg, 1943</small>
- Halicyclops exiguus <small>Kiefer, 1934</small>
- Halicyclops fosteri <small>M. S. Wilson, 1958</small>
- Halicyclops gauldi <small>Plesa, 1961</small>
- Halicyclops gaviriai <small>Suárez-Morales & Fuentes-Reinés, 2014</small>
- Halicyclops glaber <small>C. E. F. Rocha, 1983</small>
- Halicyclops harpacticoides <small>(Shmankevich, 1875)</small>
- Halicyclops herbsti <small>C. E. F. Rocha & Iliffe, 1993</small>
- Halicyclops higoensis <small>Itô, 1957</small>
- Halicyclops hurlberti <small>C. E. F. Rocha, 1991</small>
- Halicyclops incognitus <small>Herbst, 1962</small>
- Halicyclops itohi <small>Ueda & Nagai, 2012</small>
- Halicyclops japonicus <small>Itô, 1956</small>
- Halicyclops kieferi <small>Karanovic, 2004</small>
- Halicyclops konkanensis <small>Lindberg, 1949</small>
- Halicyclops korodiensis <small>Onabamiro, 1952</small>
- Halicyclops laciniatus <small>Herbst, 1987</small>
- Halicyclops laminifer <small>Herbst, 1982</small>
- Halicyclops lanceolatus <small>Chang & Lee, 2012</small>
- Halicyclops latus <small>Shen & Tai, 1964</small>
- Halicyclops lindbergi <small>C. E. F. Rocha, 1995</small>
- Halicyclops longifurcatus <small>Pesce, De Laurentiis & Humphreys, 1996</small>
- Halicyclops lutum <small>Karanovic, 2008</small>
- Halicyclops maculatus <small>C. E. F. Rocha & Hakenkamp, 1993</small>
- Halicyclops magniceps <small>(Lilljeborg, 1853)</small>
- Halicyclops martinezi <small>Totakura & Reddy, 2015</small>
- Halicyclops neglectus <small>Kiefer, 1935</small>
- Halicyclops oblongus <small>Lindberg, 1951</small>
- Halicyclops oraeeburnensis <small>Lindberg, 1957</small>
- Halicyclops oryzanus <small>Defaye & Dussart, 1988</small>
- Halicyclops ovatus <small>C. E. F. Rocha, 1984</small>
- Halicyclops paradenticulatus <small>C. E. F. Rocha, 1984</small>
- Halicyclops pescei <small>Karanovic, 2004</small>
- Halicyclops pilifer <small>Lindberg, 1949</small>
- Halicyclops pilosus <small>C. E. F. Rocha, 1984</small>
- Halicyclops pondoensis <small>Wooldridge, 1977</small>
- Halicyclops propinquus <small>G. O. Sars, 1905</small>
- Halicyclops pumilus <small>Chang & Lee, 2012</small>
- Halicyclops pusillus <small>Kiefer, 1954</small>
- Halicyclops ramirezi <small>Menu-Marque & Sorarrain, 2007</small>
- Halicyclops reidae <small>C. E. F. Rocha & Hakenkamp, 1993</small>
- Halicyclops reunionensis <small>Bozic, 1964</small>
- Halicyclops reunionis <small>Kiefer, 1960</small>
- Halicyclops robustus <small>Lindberg, 1951</small>
- Halicyclops rochai <small>De Laurentiis, Pesce & Humphreys, 1999</small>
- Halicyclops rotundipes <small>Kiefer, 1935</small>
- Halicyclops ryukyuensis <small>Itô, 1962</small>
- Halicyclops sarsi <small>Akatova, 1935</small>
- Halicyclops septentrionalis <small>Kiefer, 1935</small>
- Halicyclops setifer <small>Lindberg, 1950</small>
- Halicyclops setiformis <small>Ueda & Nagai, 2012</small>
- Halicyclops similis <small>Kiefer, 1935</small>
- Halicyclops sinensis <small>Kiefer, 1928</small>
- Halicyclops soqotranus <small>Baribwegure & Dumont, 2000</small>
- Halicyclops souzacruzae <small>C. E. F. Rocha, 1981</small>
- Halicyclops spinifer <small>Kiefer, 1935</small>
- Halicyclops stocki <small>Herbst, 1962</small>
- Halicyclops tageae <small>Lotufo & C. E. F. Rocha, 1993</small>
- Halicyclops tenuispina <small>Sewell, 1924</small>
- Halicyclops tetracanthus <small>C. E. F. Rocha, 1995</small>
- Halicyclops thermophilus <small>Kiefer, 1929</small>
- Halicyclops thysanotus <small>C. B. Wilson, 1935</small>
- Halicyclops troglodytes <small>Kiefer, 1954</small>
- Halicyclops uncus <small>Ueda & Nagai, 2009</small>
- Halicyclops validus <small>Monchenko, 1974</small>
- Halicyclops venezuelaensis <small>Lindberg, 1954</small>
- Halicyclops verae <small>C. E. F. Rocha, 1984</small>
- Halicyclops wilsoni <small>Mahoon & Zia, 1985</small>
- Halicyclops ytororoma <small>Lotufo & C. E. F. Rocha, 1993</small>
References